Hermann Ganswindt (12 June 1856, Voigtshof bei Seeburg, East Prussia – 25 October 1934) was a German inventor and spaceflight scientist, whose inventions (such as the helicopter) are thought to have been ahead of his time.

[citation needed] On 27 May 1891, he gave a public speech at the Berlin Philharmony in which he introduced his concept of a galactic vehicle (Weltenfahrzeug).

Ganswindt's work is considered to be ahead of his time by several decades since his contemporary fellows had been unable to recognize the impact of his ideas.

The International Astronomical Union (IAU) named the lunar crater Ganswindt in his honor.

His enthusiasm towards space travel was shared by one of his sons, who worked for Wernher von Braun's moon program.